Home / 243,497.20-336,059.54-140,129.28

Finding the Fourth Proportional to 243,497.20, 336,059.54 and 140,129.28

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Solution

The fourth proportional to 243,497.20, 336,059.54 and 140,129.28 is: 193,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,497.20 : 336,059.54 = 140,129.28 : x
  2. Step 2: Convert to fraction form
    243,497.20/336,059.54 = 140,129.28/x
  3. Step 3: Cross multiply
    243,497.20x = 336,059.54 × 140,129.28
  4. Step 4: Simplify right side
    243,497.20x = 47,091,781,377.33
  5. Step 5: Solve for x
    x = 47,091,781,377.33/243,497.20
  6. Step 6: Final answer
    x = 193,397.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.